A Breath Ammonia Sensor Based on Conducting Polymer Nanojunctions
IEEE Sensors Journal（2008）
Abstract
We present an ammonia sensor for human breath analysis based on electrically conducting polymer nanojunctions. Each nanojunction is formed by bridging a pair of gold nanoelectrodes on a silicon chip separated by a small gap (<60 nm) with electrodeposited polyaniline. The signal transduction mechanism of the sensor is the change in the nanojunction conductance as a result of polymer dedoping by amm...
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Key words
Polymers,Humans,Chemical sensors,Diseases,Blood,Face detection,Embedded system,Conducting materials,Chemical analysis,Humidity
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